The co-op bank emailed my and wanted me to confirm the large payment paid into my account was not fraud. I just had to send my bank details and answer security details. They say they do this for all payment of over £50,000

We all find it relatively easy to filter out phishing and philth in our emails so why can't the e mail providers, if only to save the energy wasted in moving this garbage round cyber space, plus sorting the constant scourge of compromising our contact lists and further spreading the garbage about.